The Real Reason Your Eyesight Keeps Getting Worse

In the seventh hour, prolonged close focus shrinks peripheral vision. By the eighth hour, structural damage to the eyeball can occur, leading to nearsightedness (myopia). Studies show that spending more time outdoors significantly reduces myopia in children.

By the fifth hour, the ciliary muscle can get stuck in a contracted state, causing temporary blurriness even after looking away from the screen. The sixth hour disrupts the body's balancing system, leading to feelings of dizziness and disorientation due to the head being fixated in one position, affecting overall bodily signals.

Extended screen time not only strains your eyes but also your brain, as the retina is essentially brain tissue. The prevalence of myopia (nearsightedness) in children has drastically increased due to lack of exposure to natural environments. The primary issue lies with the ciliary muscle, which maintains focus and acts like a clenched fist for prolonged periods during screen use.

During the first hour, the ciliary muscle begins to contract without noticeable symptoms. By the second hour, the blink rate significantly drops from 15-20 times per minute to 5-6 times, leading to dry, burning eyes due to inadequate lubrication.

The third hour brings a 'static clock mismatch' where the eyes are fixed, causing cognitive load and mental fatigue. By the fourth hour, the retina starts going dark due to insufficient bright light (lux). Bright light triggers dopamine in the eye, which is crucial for maintaining the eyeball's shape and regulating circadian rhythms. Lack of sufficient lux, especially from outdoor sunlight, is detrimental and can contribute to seasonal affective disorder.

While the 20-20-20 rule (looking 20 feet away for 20 seconds every 20 minutes) is a start, it's often insufficient. The most effective strategy is to spend 20 minutes daily outdoors, allowing your gaze to drift naturally. Additionally, every hour, look away from the screen for 2-3 minutes, ideally at the open sky. This provides essential lux for optical health and circadian rhythm. Blinking slowly and deliberately 10 times during these breaks helps lubricate the eyes. Early morning sun exposure for 20-30 minutes without sunglasses is also vital for sleep regulation. In winter, a therapeutic light can mimic natural sunlight.